1.Department of Mathematical Analysis Faculty of Mathematics and Natural Sciences,University of Rzeszow,Rzeszow,Poland;2.Department of Mathematics,Shahrood University of Technology,Shahrood,Iran
Abstract:
In this work, we obtained the second Hankel determinant with a different method for a certain class of analytic bi-univalent function which is defined by subordinations in the open unit disk. Moreover, the presented results in this work improve or generalize the recent works of other authors.